I really need a help with R program

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OBS YEAR Y PC PB YD TEMP PRP
1 1974 39.7 42.3 143.8 50.1 -16 107.8
2 1975 38.69 49.4 152.2 54.98 -4 134.6
3 1976 42.02 45.5 145.7 59.72 -24 134
4 1977 42.71 45.3 145.9 65.17 16 125.4
5 1978 44.75 49.3 178.8 72.24 5 143.6
6 1979 48.35 50 222.4 79.67 13 152.5
7 1980 48.47 53.5 233.6 88.22 21 147.5
8 1981 50.37 53.8 234.7 97.65 49 161.2
9 1982 51.52 51.5 238.4 104.26 4 185.6
10 1983 52.55 56 234.1 111.31 35 179.7
11 1984 54.61 61.5 235.5 123.19 11 171.4
12 1985 56.42 56.2 228.6 130.37 4 170.8
13 1986 57.7 63.1 226.8 136.49 18 188.8
14 1987 61.94 53.1 238.4 142.41 35 199.4
15 1988 63.8 62.1 250.3 152.97 46 194
16 1989 66.88 64.2 265.7 162.57 32 193.5
17 1990 70.34 60.5 281 171.31 64 224.9
18 1991 73.26 57.7 288.3 176.09 52 224.2
19 1992 76.39 59 284.6 184.94 18 209.5
20 1993 78.27 27.1 293.4 188.72 27 209.1
21 1994 79.65 26.2 282.9 195.55 48 209.5
22 1995 79.27 26.9 284.3 202.87 71 206.1
23 1996 80.61 28 280.2 210.91 36 233.7
24 1997 83.1 33.2 279.5 219.4 60 245
25 1998 83.76 33.4 277.1 231.61 89 242.7
26 1999 88.98 39.5 287.8 239.68 60 241.4
27 2000 90.08 43 306.4 254.69 62 258.2
28 2001 89.71 43.4 337.7 262.24 74 269.4
29 2002 94.37 43.9 331.5 271.45 85 265.8